upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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327 lines
7.2 KiB
327 lines
7.2 KiB
/*
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* (C) Copyright 2002
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* Rich Ireland, Enterasys Networks, rireland@enterasys.com.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/* Generic FPGA support */
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#include <common.h> /* core U-Boot definitions */
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#include <xilinx.h> /* xilinx specific definitions */
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#include <altera.h> /* altera specific definitions */
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#include <lattice.h>
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/* Local definitions */
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#ifndef CONFIG_MAX_FPGA_DEVICES
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#define CONFIG_MAX_FPGA_DEVICES 5
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#endif
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/* Local static data */
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static int next_desc = FPGA_INVALID_DEVICE;
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static fpga_desc desc_table[CONFIG_MAX_FPGA_DEVICES];
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/*
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* fpga_no_sup
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* 'no support' message function
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*/
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static void fpga_no_sup(char *fn, char *msg)
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{
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if (fn && msg)
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printf("%s: No support for %s.\n", fn, msg);
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else if (msg)
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printf("No support for %s.\n", msg);
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else
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printf("No FPGA support!\n");
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}
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/* fpga_get_desc
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* map a device number to a descriptor
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*/
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const fpga_desc *const fpga_get_desc(int devnum)
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{
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fpga_desc *desc = (fpga_desc *)NULL;
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if ((devnum >= 0) && (devnum < next_desc)) {
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desc = &desc_table[devnum];
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debug("%s: found fpga descriptor #%d @ 0x%p\n",
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__func__, devnum, desc);
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}
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return desc;
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}
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/*
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* fpga_validate
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* generic parameter checking code
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*/
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const fpga_desc *const fpga_validate(int devnum, const void *buf,
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size_t bsize, char *fn)
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{
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const fpga_desc *desc = fpga_get_desc(devnum);
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if (!desc)
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printf("%s: Invalid device number %d\n", fn, devnum);
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if (!buf) {
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printf("%s: Null buffer.\n", fn);
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return (fpga_desc * const)NULL;
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}
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return desc;
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}
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/*
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* fpga_dev_info
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* generic multiplexing code
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*/
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static int fpga_dev_info(int devnum)
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{
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int ret_val = FPGA_FAIL; /* assume failure */
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const fpga_desc * const desc = fpga_get_desc(devnum);
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if (desc) {
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debug("%s: Device Descriptor @ 0x%p\n",
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__func__, desc->devdesc);
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switch (desc->devtype) {
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case fpga_xilinx:
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#if defined(CONFIG_FPGA_XILINX)
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printf("Xilinx Device\nDescriptor @ 0x%p\n", desc);
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ret_val = xilinx_info(desc->devdesc);
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#else
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fpga_no_sup((char *)__func__, "Xilinx devices");
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#endif
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break;
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case fpga_altera:
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#if defined(CONFIG_FPGA_ALTERA)
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printf("Altera Device\nDescriptor @ 0x%p\n", desc);
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ret_val = altera_info(desc->devdesc);
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#else
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fpga_no_sup((char *)__func__, "Altera devices");
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#endif
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break;
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case fpga_lattice:
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#if defined(CONFIG_FPGA_LATTICE)
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printf("Lattice Device\nDescriptor @ 0x%p\n", desc);
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ret_val = lattice_info(desc->devdesc);
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#else
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fpga_no_sup((char *)__func__, "Lattice devices");
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#endif
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break;
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default:
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printf("%s: Invalid or unsupported device type %d\n",
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__func__, desc->devtype);
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}
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} else {
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printf("%s: Invalid device number %d\n", __func__, devnum);
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}
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return ret_val;
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}
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/*
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* fpga_init is usually called from misc_init_r() and MUST be called
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* before any of the other fpga functions are used.
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*/
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void fpga_init(void)
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{
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next_desc = 0;
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memset(desc_table, 0, sizeof(desc_table));
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debug("%s\n", __func__);
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}
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/*
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* fpga_count
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* Basic interface function to get the current number of devices available.
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*/
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int fpga_count(void)
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{
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return next_desc;
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}
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/*
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* fpga_add
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* Add the device descriptor to the device table.
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*/
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int fpga_add(fpga_type devtype, void *desc)
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{
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int devnum = FPGA_INVALID_DEVICE;
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if (!desc) {
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printf("%s: NULL device descriptor\n", __func__);
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return devnum;
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}
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if (next_desc < 0) {
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printf("%s: FPGA support not initialized!\n", __func__);
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} else if ((devtype > fpga_min_type) && (devtype < fpga_undefined)) {
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if (next_desc < CONFIG_MAX_FPGA_DEVICES) {
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devnum = next_desc;
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desc_table[next_desc].devtype = devtype;
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desc_table[next_desc++].devdesc = desc;
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} else {
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printf("%s: Exceeded Max FPGA device count\n",
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__func__);
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}
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} else {
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printf("%s: Unsupported FPGA type %d\n", __func__, devtype);
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}
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return devnum;
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}
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/*
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* Return 1 if the fpga data is partial.
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* This is only required for fpga drivers that support bitstream_type.
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*/
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int __weak fpga_is_partial_data(int devnum, size_t img_len)
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{
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return 0;
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}
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/*
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* Convert bitstream data and load into the fpga
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*/
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int __weak fpga_loadbitstream(int devnum, char *fpgadata, size_t size,
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bitstream_type bstype)
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{
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printf("Bitstream support not implemented for this FPGA device\n");
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return FPGA_FAIL;
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}
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#if defined(CONFIG_CMD_FPGA_LOADFS)
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int fpga_fsload(int devnum, const void *buf, size_t size,
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fpga_fs_info *fpga_fsinfo)
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{
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int ret_val = FPGA_FAIL; /* assume failure */
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const fpga_desc *desc = fpga_validate(devnum, buf, size,
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(char *)__func__);
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if (desc) {
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switch (desc->devtype) {
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case fpga_xilinx:
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#if defined(CONFIG_FPGA_XILINX)
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ret_val = xilinx_loadfs(desc->devdesc, buf, size,
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fpga_fsinfo);
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#else
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fpga_no_sup((char *)__func__, "Xilinx devices");
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#endif
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break;
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default:
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printf("%s: Invalid or unsupported device type %d\n",
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__func__, desc->devtype);
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}
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}
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return ret_val;
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}
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#endif
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/*
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* Generic multiplexing code
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*/
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int fpga_load(int devnum, const void *buf, size_t bsize, bitstream_type bstype)
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{
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int ret_val = FPGA_FAIL; /* assume failure */
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const fpga_desc *desc = fpga_validate(devnum, buf, bsize,
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(char *)__func__);
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if (desc) {
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switch (desc->devtype) {
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case fpga_xilinx:
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#if defined(CONFIG_FPGA_XILINX)
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ret_val = xilinx_load(desc->devdesc, buf, bsize,
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bstype);
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#else
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fpga_no_sup((char *)__func__, "Xilinx devices");
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#endif
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break;
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case fpga_altera:
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#if defined(CONFIG_FPGA_ALTERA)
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ret_val = altera_load(desc->devdesc, buf, bsize);
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#else
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fpga_no_sup((char *)__func__, "Altera devices");
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#endif
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break;
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case fpga_lattice:
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#if defined(CONFIG_FPGA_LATTICE)
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ret_val = lattice_load(desc->devdesc, buf, bsize);
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#else
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fpga_no_sup((char *)__func__, "Lattice devices");
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#endif
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break;
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default:
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printf("%s: Invalid or unsupported device type %d\n",
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__func__, desc->devtype);
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}
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}
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return ret_val;
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}
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/*
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* fpga_dump
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* generic multiplexing code
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*/
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int fpga_dump(int devnum, const void *buf, size_t bsize)
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{
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int ret_val = FPGA_FAIL; /* assume failure */
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const fpga_desc *desc = fpga_validate(devnum, buf, bsize,
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(char *)__func__);
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if (desc) {
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switch (desc->devtype) {
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case fpga_xilinx:
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#if defined(CONFIG_FPGA_XILINX)
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ret_val = xilinx_dump(desc->devdesc, buf, bsize);
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#else
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fpga_no_sup((char *)__func__, "Xilinx devices");
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#endif
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break;
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case fpga_altera:
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#if defined(CONFIG_FPGA_ALTERA)
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ret_val = altera_dump(desc->devdesc, buf, bsize);
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#else
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fpga_no_sup((char *)__func__, "Altera devices");
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#endif
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break;
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case fpga_lattice:
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#if defined(CONFIG_FPGA_LATTICE)
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ret_val = lattice_dump(desc->devdesc, buf, bsize);
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#else
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fpga_no_sup((char *)__func__, "Lattice devices");
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#endif
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break;
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default:
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printf("%s: Invalid or unsupported device type %d\n",
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__func__, desc->devtype);
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}
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}
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return ret_val;
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}
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/*
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* fpga_info
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* front end to fpga_dev_info. If devnum is invalid, report on all
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* available devices.
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*/
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int fpga_info(int devnum)
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{
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if (devnum == FPGA_INVALID_DEVICE) {
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if (next_desc > 0) {
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int dev;
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for (dev = 0; dev < next_desc; dev++)
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fpga_dev_info(dev);
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return FPGA_SUCCESS;
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} else {
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printf("%s: No FPGA devices available.\n", __func__);
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return FPGA_FAIL;
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}
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}
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return fpga_dev_info(devnum);
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}
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